Pumping system for gas-engines.



L. SCHWITZER.

PUMPING SYSTEM FOR GAS ENGINES.

APPLICATION FILED JUNE3,1912.

` Patented Sept. 1, 1914.

2 SHEETSA-SHEET 1.

If ,SMH/12262,.

l] Hof n c 1J L. SGHWITZER.

PUMPING SYSTEM PoR GAS ENGINES.

APPLICATION FILED JUNE 3, 1912.

1,109,256, Patented Sep1;.1,1914.

2 SHEETS-SHEET 2.

lll/ll UNITED sTATEs PATENToFFIoE. l

LOUIS SCHWITZEROF INDIANAPOLIS, INDIAM.

PUMPING SYSTEM FOR- GAS-ENGINES.

Specification of Letters Patent.

, Patented sept.1,19 14.

pplication filed J' une 3, 1912. Serial No. 701,231.

To-aZZ 'whom t concern: p

Be it known that I, LoUIs Scrrwrrznn, a citizen of Austria, (who has declared his 1n- `tention of becoming a citizen ,of the United States,). residing at Ind1anapol1s,'1n the county of Marion and State of Indiana, have invented a new and useful Pumping System for Gas-Engines, of which the following is a specification. t

The object of my invention 1s to prov1de a compact and simplified construction ar.

The accompanying drawings illustrate my invention.

Figure l 1s an axial vertlcal sectlon of an engine embodying my' invention; Fig. 2 is a fragmentary side eleva-tion; Fig. 3 an axial section of the oil pump. c

In the drawings, .10 indicates an engine cylinder having'an open lower end to which is secured the upper open end of the main crank shaft casing 11, to the lower open end of which is secured a complementary crank casing or drainage pan 12, to the lower end of which is secured an oil reservoir 13 within which is formed an oil pump 14.

Mounted within cylinder 10' is a valvesleeve 15 and within the valve sleeve 15 is a 'second valve sleeve 16 within` which is a piston 17 fwhich is connected by apitman 18 to the main crank shaft 19 whichis journaled in bearings 21, preferably supportedbythe casing member 11. Also journaled in the casing member 11 is a valveshaft 22 which is provided with two cranks for each pair of valve sleeves 15 and 16, the said cranks being connected by suitable arms 23 to the respective sleeves. v

Opposite one of the cranks of the valve shaft, the casing 11 is provided with an extension 24 which, at its lower end, `is provided vvith an opening 24 which is flanked externally by an' inclined face 26 to whichl the open end of the main body 27 .of the lubricant pump is detachably bolted. The

vertical facerof the extension 24 is conven upper end this 'extension is 'provided withV avertical hole 29 which receives the lower end of the main body 31 of Van-air pump. A plug 32 is threaded into the upper end of the body 3l so as to be readilyadjusted longitudinally of the pump body to vary the compression space therein. Reciprocably mounted within the cylindrical bore of the pump body 31 is a piston 33 which is f provided with a longitudinal bore 34 open at its upper end andunear its lower end provided with a transverse passage 35 which, v

when the piston isat the compression end of-,its stroke, willregister with'an exhaust passage 36 which delivers to a pipe 37 carried to the fuel tank (not shown). The pump body 27 isv provided in its lower part with a cylindrical bore 41 with- 1n which '1s mounted an -oscillatable cylindrical valve'42. Plugs 43, 43 are threaded into' the'opposite ends'of` bore 41 and serve to hold the valve 42 axially inplace. Exe tending longitudinally within valve 42, for

-thegreater portionof its` length, i's a passage 44 which 'may be conveniently formed by drilling from end to end and closing the ends byplugs 45, 45. .Communicating with one 'end of passage 44 and'opening out'through the circumference of the piston, is a discharge passage 46, and I prefer to provide a similar discharge passage 46/at the opposite 'end of the piston, thus making the structurev fool-proof in that' it .may be placed either end foremost within4 bore 41 without interfering with its proper operation. Leading into passage 44 is an inlet passage' 47 arranged for intermittent registry 'with an inlet passage 48 formed through the bottom ofthe punipl body 27 and threaded to receive a coupling 49 which, in turn is connected to one end of a coil 51, the other end 4of which is connected by a coupling 452 with a lpassage 53 'formed through the body of one wall of pan 12 ioo and communicating at itslower end with an inlet-pipe 54 which leads downwardly into the coil sump 14. Opposite passage .48 the valve 42 is provided with a .transverse threaded opening 55 which receives the threaded shank of a pump body 56 having a bore 57 Ywithin which is reciprocably mounted a pump piston 58.. That one of the valve* operating arms 23 which lies opposite the projection 24, is provided with a downwardly and outwardly extending arm 61 which is pivotally connected at 62 to the indicated by the dotted line in Fig. 1, and

this will result in a simultaneous reciprocatilon of the piston 58 and an oscillation of the valve 42 so as to intermittently and alternately register the inlet passage 47 with passage 48 and the exhaust passage 46 with an oil delivery passage 65 which leads the' discharged oil to any desired point, such, for instance, as the equalizing chamber 66, from which it may be delivered to desired points: At the same time the points 63 of arm 61 will travel through a dierent l ellipse and will result in a reciprocation of the air pumppiston 33 this reciprocation resulting in a delivery ot air under pressure to the fuel tank. The maximum pressure of delivered air from the pump chamber 3l may be determined by an adjustment of the adjustable head or plug 32 and, of course, whenever the pressure in the chamber to which pipe 37 delivers becomes equal to the pressure of compression in the air pump there will be no further delivery of air from the air pump even though the piston be continued 1n operation.

The pump bodies 27 and 31 are readily accessible and readily detachable from position so that they may be easily withdrawn for inspectionand repair.

I claim as my invention:

l. In an internal combustion engine, the combination with a cylinder, piston and interposed longitudinally shiftable valve sleeve, of a valve shaft having an eccentric portion, a connecting arm connecting said eccentric portion and the valve sleeve, an oil pump comprising an oscillatory valve memer and a reciprocatory plunger carried by said valve member, a connection between the connecting arm and the reciprocatory plunger of the oil pump, an air pump having a reciprocating member, and a connection between said' reciprocating member and the connecting arm.

2. In an internal combustion engine, the combination with .a cylinder, piston and interposed longitudinally shiftable valve sleeve, of a valve shaft having an veccentric portion, a connecting arm connecting said eccentric portion and the valve sleeve, an` -oil pump, a connection between the connecting arm and the oil pump, an air pump having a reciprocating member, and a connection between said reciprocating member and the connecting arm.

3. In an internal combustion engine, the

combination with a cylinder, piston and interposed longitudinally shiftable valve sleeve, of a valve shaft having an eccentric portion, a connecting arm connecting said eccentric' portion and the valve sleeve, an oil pump comprising an oscillatory valve mem'- ber and a' reciprocatory plunger carried by said valve member, a connection between the connecting arm and the reciprocatory plunger of the oil pump.

4. In an internal combustion engine, thecombination with a cylinder, piston and interposed longitudinally shiitable valve sleeve, of a valve shaft having an eccentric portion, a connecting arm connecting said eccentric portion and the valve sleeve, an

oil pump, a connection between the connecting arm and the oil pump.

5. In an internal combustion engine, the combination with a casing member having an external extension, an oil pump body detachably connected .to saidA extension, and having a cylindrical bore, a cylindrical valve member oscillatably mounted in said bore and' having a passagel there through with an inlet end and an exhaust end, and the pump body having an inlet passage and an exhaust passage arranged for alternate registry with the inlet and exhaust ends of the passage through the valve, a pump cylinder carried by the valve member and projecting substantially radially therefrom, and a pump piston reciprocably mounted within said pump chamber, a shaft journaled within the casing member and provided with an eccentric portion,\and a connection between said eccentric portion and the pump piston, an axially shiftable valve sleeve arranged within the enginev cylinder and embracing the piston thereof, and a connection between the connecting arm of the pump piston and said last mentioned valve sleeve.

6. In an internal combustion engine, the combination with a casing member having an external extension, an oil pump body detachably connected to said extension, and having a cylindrical bore, a cylindrical valve member oscillatably mounted in said bore and having a passage therethrough with an inlet end and an exhaust end, and the pump body having an inlet passage and an exhaust passage arranged for alternate registry with the inlet and exhaust ends of the passage through the valve, a pump cylinder carried by the valve member and projecting substantially radially therefrom, and a pump iatA piston reciprocably mounted within said d pump chamber.

7. In an internal combustion engine, the combination with a casing member having an external extension, an oil pump body detachably connected to said extension, and having a cylindrical bore, a cylindrical valve member oscillatably mounted in said bore and having a passage there through With an inlet end and an exhaust end, and the pump body having an inlet passage and an exhaust passage arranged for alternate registry With the inlet and exhaust ends of the passage through the Valve, a pump cylindervcarried by the valve member and projecting substantially radially therefrom, and a pump piston reciprocably mounted Within said pump chamber, a shaft journaled Wthinthe casing member and provided with an eccen- 'my hand and seal at Indianapolis, Indiana, 15

this 31st day of May, A. D. one thousand nine hundred and twelve.

LOUIS SCHWITZER.

Witnesses:

ARTHUR M. Hoon, MAY LAVYDEN. 

